Signature mismatch while OTA updating U build

• /e/ version: 2.6.3 to 2.7
• Device model(s): gta4xlwifi
• Developer mode enabled: yes
• Device rooted: no
• Trackers blocker enabled: yes

Summary

After downloading the build via OTA, the installation fails. The device is stuck on recovery on says installation was aborted. Rebooting loads 2.6.3 again instead of 2.7

The problem

Steps to reproduce

1. download 2.7 via OTA
2. Tap on Install and then on OK

What is the current behavior?

The device starts updating the device and then says installation failed in the recovery screen. According to @althafvly's analysis it seems this change is missing for android 14.

e/os/android_build!54 (commits) e/os/android_build@d9ac9b5e

What is the expected correct behavior?

The installation succeeds and the device boots on 2.7

Technical informations

Relevant logs (adb logcat)

Relevant screenshots

Solutions

Workaround

Possible fixes